Portion of a golf club head for a putter



FIG. 1 is a bottom perspective view of a portion of a golf club head for a putter showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a toe end view thereof;

FIG. 5 is a heel end view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines immediately adjacent to the shaded regions form unclaimed boundaries of the design. The broken line showing of the trapezoidal region and the remainder of the golf club head is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a golf club head for a putter, as shown and described. 